small_rc wrote:Is the oscillation of the popwing a CG issue, a speed issue or a toe-in toe-out issue with the wingtips.
Many wings have the constant wiggle in yaw. Should the motor be mounted at the nose as a "puller" rather than in the tail as a pusher?
Will moving the motor further ahead help?
I thing it is a dynamic issue with thrust line, or the wing and winglet configuration, not a GP2 issue. I am working on the same problem.
Where do you buy the PopWing? The US seller wants $45.00 to ship to Canada.
Jim H
Hi JIm!
In fact the Popwing flew with the GP1 just fine last season. In fact so nicely that I decided to get another "fresh" one to have for this season. Therefore, I am quite convinced it was a trim / parameter issue.
I found out two days ago that forwarding the CG a bit AND increasing roll P-gain helped quite a bit.
I will try to perfect it but I managed to get really nice tracking upwind by just doing this.
I got my Popwing from a local seller - not as cheap as in the US but still... I think Nitroplanes carry them - are they charging that much to ship? It was about $100 on sale here so I think that's what you would pay incl shipping anyway...
Well worth the money anyway (I have tested quite a few wings) - and you get a decent outrunner motor included in that price too...
Cheers,
Björn